Description
Network Standard
NTP server
NTP server configuration with IPv6
DHCP option 56
Vendor class identifier
DHCP option 60
TFTP server name
DHCP option 66
Vendor-identifying vendor-specific information
Can be used for TR.69 Auto Configurations Server
(ACS) discovery.
DHCP option 125
TFTP server
DHCP option 150
Provisioning server IP
DHCP option 159
Provisioning URL
DHCP option 160
Configure the Challenge for SIP INVITE Messages
You can set up the phone to challenge the SIP INVITE (initial) message in a session. The challenge restricts
the SIP servers that are permitted to interact with devices on a service provider network. This practice prevents
malicious attacks against the phone. When you enable this feature, authorization is required for initial incoming
INVITE requests from the SIP proxy.
You can also configure the parameters in the phone configuration file with XML(cfg.xml) code.
Before you begin
Access the Phone Web Interface, on page 104
Procedure
Step 1
Select
Voice
>
Ext(n)
, where n is an extension number.
Step 2
In the
SIP Settings
section, select
Yes
from the
Auth INVITE
list to enable this feature or select
No
to disable
it.
You can configure this parameter in the phone configuration XML file (cfg.xml) by entering a string in this
format:
<Auth_INVITE_1>Yes</Auth_INVITE_1_>
Default:
No
.
Step 3
Click
Submit All Changes
.
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
120
Cisco IP Phone Configuration
Configure the Challenge for SIP INVITE Messages
Summary of Contents for 8800 Series
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